Data transmission system having a backup testing facility
    1.
    发明授权
    Data transmission system having a backup testing facility 失效
    具有备份测试设备的数据传输系统

    公开(公告)号:US5689513A

    公开(公告)日:1997-11-18

    申请号:US624055

    申请日:1996-03-29

    CPC分类号: H04Q11/0457

    摘要: A data transmission system having, in addition to a normal system operation mode, a test mode wherein a plurality of stations confirm each other through sending and receiving check data for security confirmation and wherein the actual line switching operation is not performed. In the test mode, when notifying test data for confirmation of another station, the call terminating station side notifies the accurate data, while the call originating station side activating the test mode notifies deliberately changed check data thereby enabling a test for confirmation of the continuance of connection with a backup line without suspending communication with the working line.

    摘要翻译: 一种数据传输系统,除了正常的系统操作模式之外,还具有测试模式,其中多个站通过发送和接收用于安全确认的检查数据来确认彼此,并且其中不执行实际的线路切换操作。 在测试模式下,当通知用于确认另一站的测试数据时,呼叫终端站侧通知准确的数据,而启动测试模式的呼叫发起站侧通知故意改变的检查数据,从而使得能够进行用于确认 与备用线路的连接,而不中断与工作线路的通信。